Temperature-regulator.



R. A. CREW.

TEMPERATURE REGULATOR.

APPLICATION run!) Jun 23, mm.

1,1 07376 1 Patented Aug. 18, 1914.

2 SHEETS-811E121 1.

R. A. CREW. TEMPERATURE REGULATOR.

urmoynon rum) mm: as, 1013.

1,107,761. Patented Aug. 18, .1914.

2 SHEETS-SHEET 2.

ROYAL A. oanw, or roit'rnann, oRnooN.

TEMPERAT UHF-REGULATOR.

Specification of Letters Patent.

Patented Aug. 18, 1914.

Applicationfiled June 23, 191;. Serial No. 775,371.

To allwhom it may concern:

Be it known that I, RoYAL Af. Cnsw, a citizen of the United States, residmg at 'Portland, in the county of Multnomah and others skilled in the art to which it appertains to make-and-use the same.

This invention comprehends improvements in temperature regulators and relates more particularly to those which are adapted to control a'valve or-damper.

One of the objects of the invention is to provide a temperature regulator including a receptacle for the expansive liquid, a barrel or cylinder in communication with said receptacle, through the barrel, and a pivoted lever ac tuated by the movement of the piston or plunger, said lever being connected to the valve or damper.

The invention also contemplates the provision of an extremely strong and simple device of this nature which is especially adapted for use in connection with ice making machines to control the ex ansion valve.

With these and other 0 jects in view, as

will become more apparent as the description proceeds, the invention consists in certain novel features of construction, combination, and arrangement of parts, as will be hereinafter described and claimed.

For a complete understanding of my invention, reference is to be had to the following description and accompanying drawings, in which,

Figure 1 is a vertical sectional view, partly in elevation, showing the regulator connected to a valve, Fig. 2 is a front elevation of the regulator, Fig. 3 is a top plan view, showing the device connected to a pipe, Fig. 4 is aside elevation, showin the regulator connected to a pipe, Fig. 5 IS a detail sec tional view showing a portion of the cylinder, guides, and piston, Fig. 6 is a sectional view taken on the plane of line 6-6 of Fig. 1, and, Fig. 7 is a similar view taken on the plane of line 7-7 of Fig. 1.

In the preferred embodiment of my in vention I provide a receptacle 10 which may be of any desired shape or construction, but

which is preferably made as shown in the a piston, or plunger m vable drawings, whereinit will be seen that it is somewhat oylindrically shaped and having an .arcuate recess 11 formed in its flattened rear wall. The bottom 1.2 of the receptacle is a separate piece-and is provided with an opening 13 into which is threaded an adjusting plug 14. A barrel or cylinder 15 is integrally formed upon the top 16 of the l'ec eptac e and is longitudinally slotted upon q posite sides adjacent its upper end to form t uides 17 and 18. Apertured lugs 19 are ormed upon the upper extremities of the guides for the purpose-of receiving fastening bolts. A plunger 20 which is shghtly Ion er than the barrel is reciprocally mounted t ereinand :is connected by a rod 21 to a. cross head 22 which slides between the guides 17 and 18. In order to prevent any of the.

expansive liquid leaking past the plunger 20,

I counter-bore the upper end of the barrel,

as indicated'by the numeral 23, and insert the packing rings 24. These rings are held inplace by a packing land 25 which is secured upon the rods 26 y means of the nuts 27. The gland extends into a counter-bore and also projects beyond the guides so that it may be readily connected to the threaded rods at 26. If it is desired, a piston may be used in lace of the plunger 20 and then the stufling ox may be dispensed with.

A supporting arm 28 is integrally formed with the guide 18 and extends outwardly and upwardly therefrom. A cross arm 29 is pivotally connected intermediate its ends to the extremity of the arm 28 and is provided with a laterally extending lever 30 which is formed with a longitudinal slot 31. A connecting rod 32 is secured at its lower end to the cross head 22 and at its upper end to the lever 30 by means of the bolt 33. A plurality of weights 34 are suspended from the free extremity of the lever 30 for the purpose of drawing the same downwardly when the piston is lowered. In some cases it will be found more advantageous to employ a contractile spring in place of the weights.

In the drawings I have shown an expanfl a it fine-tingle t wit- Wardly. Any increase in temperature will expand the mercury or -a-lcchel within the.

receptacle l0 and force thei ilnnger 11p- Wardly. cfausing the cross arm 29. twincrease the opening of the expansion valve. Shqmld the .teli'ppemtinte,tleerease the 1n ercum" 0) alcohol Will"c01 itract end the From the foregoing" description teken' ini.

connection with the *accon'i'penying drew ings,' it will be apparent that {have provided an extremely simple," etrabie; end

he used fol- Various purposes.

it is to he understood that while 'l'have shdWn and described the preferred embodiment of my invention, 1 do not wish te be limited tWt-hiS-exect r construction, comhi nation, and arrangement of parts, but may make such changes as willfrell Within the ceptacle, guides Jtqrming continnationsof -the harrelfa' supper-ting arm formed mtegi ally with one if the guides, a. cross bar ;piv0ted intermediate its endste said. Sup-' porting 12mm, 5 2i lever extending at right uitifis tee, tee ietelbeing previded with a secured at one end to the cross head and at the other end;t0 said lever, the point of cennectitin' with the leverbeing 'mcvvable lever downwflrdlyiis the 'liquid contracts.

".tfitestinmny Wheteefll efix my signature in g'atesence tiftwo r CREW.

Witnesses: i

Jenn Stevens,

A. @..'HOWLA1-ID.

- longitndineleldtge plunger move-hie within the barrel, :1 croseheed, a. co-nnedting rod I jalon g the slet, and Weights to/drawthe practice-l temperature regulator,- which 

